Photoluminescence from two-color quantum dot films

James Christensen; Madeline Murchland; Grace Viner; Haowen Xi; Bruno Ullrich; Mithun Bhowmick

doi:10.1117/12.2606077

4 March 2022 Photoluminescence from two-color quantum dot films

James Christensen, Madeline Murchland, Grace Viner, Haowen Xi, Bruno Ullrich, Mithun Bhowmick

Proceedings Volume 11997, Optical Components and Materials XIX; 1199704 (2022) https://doi.org/10.1117/12.2606077
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Quantum dots (QD) embedded in polymer matrix are a powerful material system for novel optoelectronic applications. Apart from the typical advantages available from QD systems such as size dependent optical properties and narrow emissions, they can also be used as a future multiplexed sensing device. In this work, we report optical emission from a two-color QD-doped silica and polymer system through photoluminescence measurements. The QD-based thin films could be excited through single wavelength in the visible range, and emitted at two distinct peaks with controllable intensities depending on the ratio of QDs doped into the silica and polymer. The emission increase of the two peaks as a function of excitation intensity was analyzed and compared with more traditional QD films deposited on bulk semiconductor substrates.

Conference Presentation

Citation Download Citation

James Christensen, Madeline Murchland, Grace Viner, Haowen Xi, Bruno Ullrich, and Mithun Bhowmick "Photoluminescence from two-color quantum dot films", Proc. SPIE 11997, Optical Components and Materials XIX, 1199704 (4 March 2022); https://doi.org/10.1117/12.2606077

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